she told cnn she's worried christie could die in office because he's so overweight. >> i worry that he may have a heart attack, he may have a stroke. it's almost like a time bomb waiting to happen. >> the doctor's comment didn't sit well with the tough talking new jersey governor. he pounded her for it. >> i find it fascinating that a doctor in arizona who has never met me, never examined me, never reviewed my medical history or records, knows nothing about my family history could make a diagnosis from 2,400 miles away. she must be a genius. it's completely irresponsible, completely irresponsible. my children saw that last night, and she sat there on tv and said i'm afraid he's going to die in office. my 12-year-old son comes to me last night and says, dad, are you going to die? she should shut up. >> so why is governor christie talking about his weight now? is christie trying to own his weight issue because he thinks it might be a huge obstacle if he decides to run in 2016? with me, steve kornacki co-host of "the cycle" and susan milligan. did the doctor cross a line? >> do you think